Home / 12,814.90-19,215.62-5,788.86

Finding the Fourth Proportional to 12,814.90, 19,215.62 and 5,788.86

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Solution

The fourth proportional to 12,814.90, 19,215.62 and 5,788.86 is: 8,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.90 : 19,215.62 = 5,788.86 : x
  2. Step 2: Convert to fraction form
    12,814.90/19,215.62 = 5,788.86/x
  3. Step 3: Cross multiply
    12,814.90x = 19,215.62 × 5,788.86
  4. Step 4: Simplify right side
    12,814.90x = 111,236,533.99
  5. Step 5: Solve for x
    x = 111,236,533.99/12,814.90
  6. Step 6: Final answer
    x = 8,680.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.